时间序列分析问题

yushionly

时间序列分析问题：已知前30天的数据如下：如何预测后7天的数值？请问采用什么方法？
<TABLE  cellSpacing=0 cellPadding=0 width=72 border=0 x:str>
<COLGROUP>
<COL style="WIDTH: 54pt" width=72>

<TR  height=20>
<TD class=xl24  width=72 height=20 x:num><FONT face="Times New Roman">1601</FONT></TD></TR>
<TR  height=20>
<TD class=xl24  height=20 x:num><FONT face="Times New Roman">5421</FONT></TD></TR>
<TR  height=20>
<TD class=xl24  height=20 x:num><FONT face="Times New Roman">1890</FONT></TD></TR>
<TR  height=20>
<TD class=xl24  height=20 x:num><FONT face="Times New Roman">4439</FONT></TD></TR>
<TR  height=20>
<TD class=xl24  height=20 x:num><FONT face="Times New Roman">1703</FONT></TD></TR>
<TR  height=20>
<TD class=xl24  height=20 x:num><FONT face="Times New Roman">3232</FONT></TD></TR>
<TR  height=20>
<TD class=xl24  height=20 x:num><FONT face="Times New Roman">376</FONT></TD></TR>
<TR  height=20>
<TD class=xl24  height=20 x:num><FONT face="Times New Roman">1167</FONT></TD></TR>
<TR  height=20>
<TD class=xl24  height=20 x:num><FONT face="Times New Roman">1897</FONT></TD></TR>
<TR  height=20>
<TD class=xl24  height=20 x:num><FONT face="Times New Roman">3737</FONT></TD></TR>
<TR  height=20>
<TD class=xl24  height=20 x:num><FONT face="Times New Roman">1807</FONT></TD></TR>
<TR  height=20>
<TD class=xl24  height=20 x:num><FONT face="Times New Roman">1628</FONT></TD></TR>
<TR  height=20>
<TD class=xl24  height=20 x:num><FONT face="Times New Roman">1723</FONT></TD></TR>
<TR  height=20>
<TD class=xl24  height=20 x:num><FONT face="Times New Roman">2584</FONT></TD></TR>
<TR  height=20>
<TD class=xl24  height=20 x:num><FONT face="Times New Roman">1551</FONT></TD></TR>
<TR  height=20>
<TD class=xl24  height=20 x:num><FONT face="Times New Roman">2479</FONT></TD></TR>
<TR  height=20>
<TD class=xl24  height=20 x:num><FONT face="Times New Roman">1199</FONT></TD></TR>
<TR  height=20>
<TD class=xl24  height=20 x:num><FONT face="Times New Roman">4148</FONT></TD></TR>
<TR  height=20>
<TD class=xl24  height=20 x:num><FONT face="Times New Roman">2449</FONT></TD></TR>
<TR  height=20>
<TD class=xl24  height=20 x:num><FONT face="Times New Roman">2026</FONT></TD></TR>
<TR  height=20>
<TD class=xl24  height=20 x:num><FONT face="Times New Roman">1690</FONT></TD></TR>
<TR  height=20>
<TD class=xl24  height=20 x:num><FONT face="Times New Roman">3374</FONT></TD></TR>
<TR  height=20>
<TD class=xl24  height=20 x:num><FONT face="Times New Roman">2015</FONT></TD></TR>
<TR  height=20>
<TD class=xl24  height=20 x:num><FONT face="Times New Roman">2480</FONT></TD></TR>
<TR  height=20>
<TD class=xl24  height=20 x:num><FONT face="Times New Roman">850</FONT></TD></TR>
<TR  height=20>
<TD class=xl24  height=20 x:num><FONT face="Times New Roman">2249</FONT></TD></TR>
<TR  height=20>
<TD class=xl24  height=20 x:num><FONT face="Times New Roman">1674</FONT></TD></TR>
<TR  height=20>
<TD class=xl24  height=20 x:num><FONT face="Times New Roman">3666</FONT></TD></TR>
<TR  height=20>
<TD class=xl24  height=20 x:num><FONT face="Times New Roman">2029</FONT></TD></TR>
<TR  height=20>
<TD class=xl24  height=20 x:num><FONT face="Times New Roman">1238</FONT></TD></TR></TABLE>

legend20

<>这是哪的题,如此熟悉</P>

legend20

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